Sony SA-WMS145 User manual

1
•SA-WMS145 are the subwoofer
section in SA-VE145.
•SA-WMSP50 are the subwoofer
section in SA-VE2M, HT-SL50/SL55.
Ver 1.0 2003. 05
SERVICE MANUAL
AEP Model
UK Model
SA-WMS145/WMSP50
E Model
SA-WMSP50
Speaker system Active subwoofer, magnetically shielded
Speaker unit Woofer: 20 cm, cone type
Enclosure type Advanced SAW type
Amplifire section
Continuous RMS power output
100 W (6 ohms, 20 - 250 Hz, 0.8% THD)
Reproduction frequency range
28 Hz - 200 Hz
High frequency cut-off frequency
150 Hz
Inputs
INPUT (input pin jack)
General
Power requirements 230 VAC, 50/60 Hz
Power consumptions 100 W
Dimensions (w/h/d) Approx. 270 ×325 ×398 mm, including
front grille
Mass Approx. 10 kg
Design and specifications are subject to change without notice.
SPECIFICATIONS
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-360-01
2003E04-1
© 2003. 05
ACTIVE SUBWOOFER
photo: SA-WMS145
SA-WMS145/WMSP50

2
SA-WMS145/WMSP50
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Circuit Boards Location ...................................................... 3
1-2. Printed Wiring Boards ......................................................... 5
1-3. Schematic Diagram ............................................................. 6
2. EXPLODED VIEWS
2-1. Front Section ....................................................................... 7
2-2. Rear Section ........................................................................ 8
3. ELECTRICAL PARTS LIST........................................... 9
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.

3
SA-WMS145/WMSP50
1-1. CIRCUIT BOARDS LOCATION
SECTION 1
DIAGRAMS
CONTROL board
LED board INPUT board
MAIN board
POWER TRANS boar
d
SWITCH board

4
SA-WMS145/WMSP50
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
•2: nonflammable resistor.
•C: panel designation.
•A: B+ Line.
•B: B– Line.
•Voltage is dc with respect to ground under no-signal
(detuned) condition.
•Voltagesaretaken withaVOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Signal path.
F: AUDIO
Note on Printed Wiring Boards:
•X: parts extracted from the component side.
•: Pattern from the side which enables seeing.
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.
Ref.No. Location
D205 E-10
D206 E-11
D301 G-7
D302 G-8
D304 E-9
D401 D-6
D402 D-7
D403 D-7
D501 D-8
D502 G-7
D602 D-10
D901 A-10
IC202 E-11
IC203 E-12
IC301 G-9
Q501 D-9
Q502 D-9
Q503 D-10
Q504 D-10
Q505 G-7
•Semiconductor
Location

55
SA-WMS145/WMSP50
1-2. PRINTEDWIRING BOARDS • Refer to page 3 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2345678910111213
C801
RV801
CNP801
C101
C201
R110
CN101
J101
JW206
R202
CN901
D901
CN402
CN301
CN204
IC301
RY301
C401 C402
C405
C407 C408
D402
D403
Q501
Q502
Q503
Q504
D501
C501
C502
C503
R403
R404
C308
C306
C307
R307
C302
R301
R302
R401
R402
D304
R311
R312
C309
C310
R502
R503
JW102
JW116
JW402
C303
JW114
JW115
R308
D401
D301
JW106
R309
R303
C301
JW301
R508
Q505
R506
D502
R507
JW401
JW124
JW126
JW127
JW501 C312
R505
R304
R501
G1
G2
JW112
R500
SP1
C409
C410
C313
JW128
R313
R315
D302
C406
R207
C203
C204
R208
R209
R210
R205
R212
R213
C208
R216
C210
R217
C207
R214
C305
C304
R504
C601
D602
R601
D205 D206
C205 C206
JW123
JW105
IC203
IC202
JW107
JW108
JW132
JW109
R305
C311
CN202
JW125
JW110
R314 JW111
JW129
R306
JW101
CNP111
C404
JW404
JW403
JW103
JW104
C211
C209
JW117
JW118
R211
JW120
JW121
JW130
JW131
JW122
JW133
JW134
JW119
R206
R310
C403
JW135
R316
C314
JW136
S901
C902
CN3
CN1
CN2
JW1
FH951
F901
C2
T1
CNP401
FH901
JW2

66
SA-WMS145/WMSP50
1-3. SCHEMATIC DIAGRAM
JW402
JW403
JW404
S901
D401
JW401
C407
C408
JW501
JW1
J101
R601
C902
C101 R110
R202
R205 R206 R207
R209
R208
R210
R211
R212 R213
R214
D205
D206
R216
C209
R217 C211
R301
R313
D301 D302
R302
R303
C312
C313
C311
R305
R309
R306
R307
R310
D304
R312
D602
C401
C402
C409
C410
D402
D403
R500R501
R502
R503
Q501
R504
R505
Q502
Q503
Q504
R508
R506
R507
C201
Q505
C601
CN204
R403
C502
C303
C301
C302
C203 C204
C205
C206
C305
C304
C306
C307
C308
R314
CN402 CNP401
C309
C310
C207
C208
C801
R304
C210
C403
C404
R404
C503
CN301
CN901
T1
CN3
IC202(1/2) IC202(2/2)
IC203(1/2)
IC203(2/2)
IC301
CN101 CN202
RY301
RV801
CNP801CNP111
R315
R308
D502 R311
D901
D501
C405
C406
R401
R402
C2
CN1
SP1
FH951FH901
F901 CN2
C501

7
SA-WMS145/WMSP50
SECTION 2
EXPLODED VIEWS
Ref. No. Part No. Description Remark
2-1. FRONT SECTION
Ref. No. Part No. Description Remark
NOTE:
•The mechanical parts with no reference
number in the exploded views are not supplied.
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
•Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
RR
1A-4737-806-A GRILLE (FRAME) ASSY (SILVER)...(SILVER)
1 A-4740-193-A GRILLE (FRAME) ASSY (SILVER)...(WOOD)
1A-4740-283-A GRILLE (FRAME) ASSY (BLACK)...(BLACK)
24-246-148-01 PANEL (FRONT) (SILVER)...(SILVER,WOOD)
24-246-148-11 PANEL (FRONT) (BLACK)...(BLACK)
34-235-677-01 SCREW (4X20) (TYPE1), +BVTP
41-688-810-11 CONTROL BOARD
51-688-812-11 LED BOARD
61-688-811-11 SWITCH BOARD
74-229-516-12 KNOB (VOL)
84-229-517-03 KNOB (SW)
SP1 1-825-004-13 SPEAKER (20cm) (WOOFER)
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
1
2
78
4
5
6
not supplied
not supplied
SP1
#1
#1
3
3

8
SA-WMS145/WMSP50
Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark
2-2. REAR SECTION
51 A-4737-805-C CABINET ASSY, SPEAKER (SILVER)...(SILVER)
51 A-4740-194-A CABINET ASSY, SPEAKER (WOOD)...(WOOD)
51 A-4740-284-A CABINET ASSY, SPEAKER (BLACK)...(BLACK)
52 4-235-677-01 SCREW (4X20) (TYPE1), +BVTP
*53 3-703-244-00 BUSHING (2104), CORD
054 1-769-744-11 CORD, POWER
55 1-688-814-11 POWER TRANS BOARD
56 A-4734-911-A MAIN BOARD, COMPLETE
57 1-688-813-11 INPUT BOARD
058 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
0F901 1-532-463-51 FUSE (T1AL/250V)
0T1 1-439-624-11 TRANSFORMER, POWER
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2 7-685-881-09 SCREW +BVTT 4X8 (S)
#3 7-685-650-79 SCREW +BVTP 3X16 TYPE2 IT-3
The components identified by
mark 0or dotted line with mark.
0are critical for safety.
Replace only with part number
specified.
not supplied
not supplied
not supplied
F901
T1
#2
#2
#2
#1
#1
#1
#1
#3
#2
51
52
52
52
52
53 54
57
55
56
58

9
SA-WMS145/WMSP50
SECTION 3
ELECTRICAL PARTS LIST
NOTE:
•Due to standardization, replacements in
the parts list may be different from the
parts specified in the diagrams or the
components used on the set.
•-XX and -X mean standardized parts, so
they may have some difference from the
original one.
•RESISTORS
All resistors are in ohms.
METAL:Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F:nonflammable
•Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
• SEMICONDUCTORS
In each case, u : µ, for example:
uA.. : µA.. uPA.. : µPA..
uPB.. : µPB.. uPC.. : µPC.. uPD.. : µPD..
•CAPACITORS
uF : µF
•COILS
uH : µH
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1-688-810-11 CONTROL BOARD
***************
< CAPACITOR >
C801 1-126-964-11 ELECT 10uF 20% 50V
< CONNECTOR >
*CNP801 1-564-519-11 PLUG, CONNECTOR 4P
< VARIABLE RESISTOR >
RV801 1-225-826-11 RES, VAR, CARBON 20K (LEVEL)
*************************************************************
1-688-813-11 INPUT BOARD
************
< CAPACITOR >
C101 1-128-813-11 CERAMIC 220PF 5% 50V
C201 1-126-964-11 ELECT 10uF 20% 50V
< CONNECTOR >
*CN101 1-506-944-11 PIN, CONNECTOR 2P
< JACK >
J101 1-815-025-11 JACK, PIN 1P (INPUT)
< RESISTOR >
R110 1-249-441-11 CARBON 100K 5% 1/4W
R202 1-249-417-11 CARBON 1K 5% 1/4W
*************************************************************
1-688-812-11 LED BOARD
**********
< CONNECTOR >
*CN901 1-564-517-11 PLUG, CONNECTOR 2P
< DIODE >
D901 8-719-057-10 LED LNJ301MPUJAB (POWER)
*************************************************************
A-4734-911-A MAIN BOARD, COMPLETE
*********************
< CAPACITOR >
C203 1-136-165-00 FILM 0.1uF 5% 50V
C204 1-136-165-00 FILM 0.1uF 5% 50V
C205 1-126-964-11 ELECT 10uF 20% 50V
C206 1-126-964-11 ELECT 10uF 20% 50V
C207 1-131-679-31 FILM 0.01uF 5% 50V
C208 1-131-696-11 FILM 0.22uF 5% 50V
C209 1-128-813-11 CERAMIC 220PF 5% 50V
C210 1-126-964-11 ELECT 10uF 20% 50V
C211 1-128-813-11 CERAMIC 220PF 5% 50V
C301 1-128-813-11 CERAMIC 220PF 5% 50V
C302 1-126-964-11 ELECT 10uF 20% 50V
C303 1-104-665-11 ELECT 100uF 20% 10V
C304 1-126-968-11 ELECT 100uF 20% 50V
C305 1-126-968-11 ELECT 100uF 20% 50V
C306 1-126-964-11 ELECT 10uF 20% 50V
C307 1-126-967-11 ELECT 47uF 20% 50V
C308 1-126-964-11 ELECT 10uF 20% 50V
C309 1-136-165-00 FILM 0.1uF 5% 50V
C310 1-136-165-00 FILM 0.1uF 5% 50V
C311 1-162-199-31 CERAMIC 10PF 5% 50V
C312 1-128-813-11 CERAMIC 220PF 5% 50V
C313 1-128-813-11 CERAMIC 220PF 5% 50V
C401 1-136-165-00 FILM 0.1uF 5% 50V
C402 1-136-165-00 FILM 0.1uF 5% 50V
C403 1-104-482-11 ELECT 4700uF 20% 63V
C404 1-104-482-11 ELECT 4700uF 20% 63V
C405 1-126-968-11 ELECT 100uF 20% 50V
C406 1-126-968-11 ELECT 100uF 20% 50V
C407 1-126-971-11 ELECT 470uF 20% 50V
C408 1-126-971-11 ELECT 470uF 20% 50V
C409 1-136-165-00 FILM 0.1uF 5% 50V
C410 1-136-165-00 FILM 0.1uF 5% 50V
C501 1-126-964-11 ELECT 10uF 20% 50V
C502 1-126-949-11 ELECT 220uF 20% 35V
C503 1-126-934-11 ELECT 220uF 20% 10V
C601 1-126-964-11 ELECT 10uF 20% 50V
< CONNECTOR >
*CN202 1-506-944-11 PIN, CONNECTOR 2P
CN204 1-564-505-11 PLUG, CONNECTOR 2P
The components identified by
mark 0or dotted line with mark.
0are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.
MAIN
INPUTCONTROL
LED

10
SA-WMS145/WMSP50
MAIN
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
CN301 1-564-320-00 PIN, CONNECTOR (3.96mm PITCH) 2P
CN402 1-785-104-11 PIN, CONNECTOR (3.96mm PITCH) 6P
< DIODE >
D205 8-719-110-31 DIODE RD12ES-B2
D206 8-719-110-31 DIODE RD12ES-B2
D301 8-719-991-33 DIODE 1SS133T-77
D302 8-719-991-33 DIODE 1SS133T-77
D304 8-719-991-33 DIODE 1SS133T-77
0D401 8-719-302-38 DIODE RBV-602-01
D402 8-719-024-99 DIODE 11ES2-NTA2B
D403 8-719-024-99 DIODE 11ES2-NTA2B
D501 8-719-991-33 DIODE 1SS133T-77
D502 8-719-991-33 DIODE 1SS133T-77
D602 8-719-991-33 DIODE 1SS133T-77
< EARTH TERMINAL >
*G1 1-537-738-21 TERMINAL, EARTH
*G2 1-537-738-21 TERMINAL, EARTH
< IC >
IC202 8-759-636-74 IC M5218AP-22
IC203 8-759-636-74 IC M5218AP-22
IC301 6-600-091-01 IC STK404-130S
< TRANSISTOR >
Q501 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q502 8-729-178-42 TRANSISTOR 2SC2784-F
Q503 8-729-119-78 TRANSISTOR 2SC2785-HFE
Q504 8-729-029-86 TRANSISTOR DTC124ESA
Q505 8-729-119-78 TRANSISTOR 2SC2785-HFE
< RESISTOR >
R205 1-249-441-11 CARBON 100K 5% 1/4W
R206 1-249-429-11 CARBON 10K 5% 1/4W
R207 1-249-429-11 CARBON 10K 5% 1/4W
R208 1-249-429-11 CARBON 10K 5% 1/4W
R209 1-249-441-11 CARBON 100K 5% 1/4W
R210 1-247-895-00 CARBON 470K 5% 1/4W
R211 1-247-887-00 CARBON 220K 5% 1/4W
R212 1-249-433-11 CARBON 22K 5% 1/4W
R213 1-249-433-11 CARBON 22K 5% 1/4W
R214 1-247-887-00 CARBON 220K 5% 1/4W
R216 1-249-429-11 CARBON 10K 5% 1/4W
R217 1-249-441-11 CARBON 100K 5% 1/4W
R301 1-249-425-11 CARBON 4.7K 5% 1/4W
R302 1-249-437-11 CARBON 47K 5% 1/4W
R303 1-249-413-11 CARBON 470 5% 1/4W
0R304 1-215-886-11 METAL OXIDE 100 5% 2W F
R305 1-249-437-11 CARBON 47K 5% 1/4W
R306 1-249-425-11 CARBON 4.7K 5% 1/4W
R307 1-249-425-11 CARBON 4.7K 5% 1/4W
0R308 1-234-182-11 ENCAPSULATED COMPONENT 0.22X2 5W
R309 1-249-406-11 CARBON 120 5% 1/4W
R310 1-249-393-11 CARBON 10 5% 1/4W
0R311 1-215-868-00 METAL OXIDE 680 5% 1W F
R312 1-249-433-11 CARBON 22K 5% 1/4W
R313 1-249-433-11 CARBON 22K 5% 1/4W
0R314 1-217-637-00 FUSIBLE 1 5% 1/4W F
R315 1-249-437-11 CARBON 47K 5% 1/4W
0R401 1-215-892-11 METAL OXIDE 1K 5% 2W F
0R402 1-215-892-11 METAL OXIDE 1K 5% 2W F
0R403 1-219-153-11 FUSIBLE 10 5% 1/4W F
0R404 1-219-153-11 FUSIBLE 10 5% 1/4W F
R500 1-249-421-11 CARBON 2.2K 5% 1/4W
R501 1-249-429-11 CARBON 10K 5% 1/4W
R502 1-249-437-11 CARBON 47K 5% 1/4W
R503 1-249-441-11 CARBON 100K 5% 1/4W
R504 1-249-441-11 CARBON 100K 5% 1/4W
R505 1-249-433-11 CARBON 22K 5% 1/4W
R506 1-249-433-11 CARBON 22K 5% 1/4W
R507 1-249-425-11 CARBON 4.7K 5% 1/4W
R508 1-249-417-11 CARBON 1K 5% 1/4W
0R601 1-215-920-11 METAL OXIDE 3.3K 5% 3W F
< RELAY >
RY301 1-755-417-12 RELAY
*************************************************************
1-688-814-11 POWER TRANS BOARD
*******************
1-533-223-11 HOLDER, FUSE
< CAPACITOR >
0C2 1-113-924-11 CERAMIC 0.0047uF 20% 250V
< CONNECTOR >
CN1 1-564-321-00 PIN, CONNECTOR (3.96mm PITCH) 2P
*CN2 1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
*************************************************************
1-688-811-11 SWITCH BOARD
*************
< CAPACITOR >
0C902 1-113-924-11 CERAMIC 0.0047uF 20% 250V
< CONNECTOR >
CN3 1-564-321-00 PIN, CONNECTOR (3.96mm PITCH) 2P
< SWITCH >
0S901 1-786-541-11 POWER SWITCH (PUSH) (POWER)
*************************************************************
MISCELLANEOUS
***************
054 1-769-744-11 CORD, POWER
058 1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
0F901 1-532-463-51 FUSE (T1AL/250V)
SP1 1-825-004-13 SPEAKER (20cm) (WOOFER)
0T1 1-439-624-11 TRANSFORMER, POWER
The components identified by
mark 0or dotted line with mark.
0are critical for safety.
Replace only with part number
specified.
SWITCHPOWERTRANS

11
SA-WMS145/WMSP50
MEMO

12
SA-WMS145/WMSP50
REVISION HISTORY
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Ver. Date Description of Revision
1.0 2003. 05 New